Year,Total_land_mt 1962,1.911 1963,3.281 1964,1.409 1965,2.725 1966,5.575 1967,1.863 1968,2.627 1969,2.021 1970,1.032 1971,4.805 1972,15.014 1973,15.281 1974,7.223 1975,8.701 1976,6.337 1977,0.891 1978,1.223 1979,1.523 1980,1.029 1981,1.246 1982,1.21 1983,0.895 1984,1.059 1985,0.991 1986,1.489 1987,1 1988,0.862 1989,0.7745 1990,0.9 1991,0.7 1992,0.9 1993,0.7 1994,0.512560121 1995,0.464605116 1996,0.398797442 1997,0.466153377 1998,0.513461656 1999,0.628330346 2000,0.599003216 2001,0.657360024 2002,0.333915039 2003,0.2569458 2004,0.20155878 2005,0.128264678